How do I start selecting a BYD IGBT module?

Fix the bus voltage and the topology first, then choose the current rating from the load and the voltage class with margin. Confirm the package, the gate drive and the thermal path. Those decisions narrow the selection quickly.

Two-level or three-level topology?

A two-level bridge is simple and low-cost, while a three-level topology such as the T-type or I-type divides the bus so each device sustains about half the voltage, which lowers the switching loss and the harmonics and suits a high-bus inverter. Our FAE team can help choose the topology.

How do I choose the voltage class?

Match the class to the bus with margin for the open-circuit voltage and the switching overshoot; the 1200 V class suits a high bus and the 650 V class a lower bus or a two-stage design. In a three-level topology each device sees about half the bus. Our FAE team can size the class.

How do I plan the thermal design?

Compute the conduction and switching loss, choose the heat sink and the interface, and measure the case and junction temperature at the worst case and compare them with the limit. At high power the thermal design is the design. Our FAE team can review the loss and the thermal path.

How do I start selecting a BYD IPM?

Fix the mains voltage and the motor current first, then choose the IPM rating above the RMS current with margin for the peak. Confirm the package, the heat sink and the protection. Those decisions narrow the selection quickly.

How do I size the IPM current rating?

Choose the rating above the motor's RMS phase current with margin for the peak and the start-up, and check it at the worst-case ambient. A BYD IPM covers 10 A, 15 A and 30 A in the same family. Our FAE team can help size the module.

How do I plan the heat sink?

Compute the module loss at the RMS current, choose the heat sink and the interface from the thermal resistance, and confirm the case temperature at the worst-case ambient. A cooler module is more reliable and does not derate. Our FAE team can review the thermal design.

How do I handle the protection?

The module includes under-voltage lockout and over-current protection and provides a fault output, so connect the fault to the controller and set the shunt for the over-current trip you need. Keep the shunt connection short. Our FAE team can review the protection.

How do I start selecting a BYD MCU?

List the peripherals you need, such as timers, ADC channels and CAN or LIN, then choose the core and the memory that cover the code, and confirm the package and the temperature grade. Those decisions narrow the selection quickly.

Choose the 8-bit BF7112A for a simple, low-cost task with a small code and a low pin count, and the 32-bit BF7006 series for a body module, a motor controller or a sensor node that needs more memory, timing and interfaces. Our FAE team can help match the core.

Which package should I choose?

Choose the LQFP-64 for the most I/O, the LQFP-48 for a compact board with the same core and memory, and the TSSOP-28 for a small 8-bit design. Confirm the pin count against the peripherals you need. Our FAE team can help choose the package.

How do I meet the safety and grade requirements?

The line is tested to AEC-Q100 Grade 1 under an IATF 16949 system with a functional-safety capability up to ISO 26262 ASIL B, and it is rated over -40 °C to +125 °C. Confirm the qualified part number and the safety level for the application. Our FAE team can confirm the qualified parts.

How do I select a BYD current sensor?

Set the current range from the maximum current, choose the sensitivity for the resolution you need, and confirm the isolation, the output and the package. Match the grade to the automotive or the industrial environment. Our FAE team can help match the range.

Why use a magnetic sensor instead of a shunt?

A shunt adds insertion loss and needs a differential amplifier and, for a high-side or high-voltage measurement, an isolation amplifier. A Hall-effect sensor measures the current without a shunt and with isolation in one package, so the loss is low and the interface is simple. Our FAE team can compare the options.

How do I lay out an isolated sensor?

Keep the high-current path and the signal path separated, respect the creepage and clearance for the isolation, and keep the signal output away from the switching nodes. Use a wide copper path for the current to keep the loss and the heating low. Our FAE team can review the layout.

How accurate is the sensor over temperature?

The Hall-effect sensor is digitally trimmed and compensated so the offset and the gain stay stable over temperature with no wear. Confirm the accuracy at the temperature extremes of the application for a demanding design. Our FAE team can review the accuracy budget.

What is the standout feature of the BYD range?

The standout feature is the vertical integration: BYD designs and manufactures its own IGBT chips, packages them into modules and IPMs, and supplies automotive-grade MCUs and current sensors, so one supplier covers the power stage, the sensing and the control of a system. The main design care points are the thermal design and the gate drive.

How do the IGBT modules perform in practice?

In practice the BYD three-level IGBT modules deliver a low switching loss and a clean output, and the direct-bonded-copper substrate carries the current and the heat well. On the bench the loss tracked the expectation when the gate drive and the dead-time were set correctly. Confirm the loss at your frequency.

Are the IPMs easy to use?

Yes. A BYD IPM integrates the three-phase inverter, the gate drivers and the protection, so a motor can be driven from a few logic signals with almost no external parts. The main care is the heat sink and the bootstrap supply. Our FAE team can review the design.

Can I get samples to evaluate?

Yes. We provide samples of the BYD modules, sensors and MCUs for your own loss, thermal and accuracy testing, with documentation included and FAE support during bring-up. Request a sample and we will confirm stock and lead time.

Technical Support | BYD Expertise | BeiLuo

Application guides, notes and reviews from BeiLuo's FAE team covering BYD IGBT modules, IPM modules, current sensors and automotive MCUs in practical detail.

Guides 3 Application Notes 1 Troubleshooting 0 Reviews 1

How to Select a BYD IGBT Module

2026-07-26 - Guides - By Zhang Wei Ming

Compare BYD IGBT modules by topology, voltage, current and package for solar inverters, motor drives, energy storage and industrial power conversion designs.

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How to Select a BYD IPM Module

2026-07-21 - Guides - By Liu Jian Guo

A practical method for selecting BYD intelligent power modules by voltage, current, package and protection for motor drive designs and inverters everywhere.

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How to Select a BYD Automotive MCU

2026-07-16 - Guides - By Wang Hui Long

Choose between BYD 8-bit and 32-bit automotive-grade MCUs by core, memory, interfaces and package for lighting, body, motor and sensor control designs.

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BYD Current Sensor Application Notes

2026-07-09 - Application Notes - By Liu Jian Guo

Application notes for selecting BYD isolated current sensors by sensing range, isolation, output and package for motor, battery and power-current measurement.

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BYD Power Module and MCU Review

2026-06-30 - Reviews - By Zhang Wei Ming

A hands-on review of BYD IGBT modules, IPM modules, current sensors and automotive MCUs for power and control designs, covering loss and accuracy in use.

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Meet Our FAE Team

Zhang Wei Ming

Senior FAE Engineer, Power Modules

IGBT ModulesIPMInverters

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Liu Jian Guo

FAE Engineer, Drivers and Sensors

Motor DrivesIPMCurrent Sensing

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Wang Hui Long

FAE Engineer, MCU Applications

Automotive MCUsBody ControlSafety

Author profile